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Nexus-MCP

io.github.jaggernaut007/nexus-mcp ยท v2.4.6

Local code search for coding agents: find the right file with far fewer tokens.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add nexus-mcp -e NEXUS_STORAGE_DIR=<NEXUS_STORAGE_DIR> -e NEXUS_OFFLINE=<NEXUS_OFFLINE> -- uvx nexus-mcp-ci==2.4.6
claude_desktop_config.json
{
  "mcpServers": {
    "nexus-mcp": {
      "command": "uvx",
      "args": [
        "nexus-mcp-ci==2.4.6"
      ],
      "env": {
        "NEXUS_STORAGE_DIR": "<NEXUS_STORAGE_DIR>",
        "NEXUS_OFFLINE": "<NEXUS_OFFLINE>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "nexus-mcp": {
      "command": "uvx",
      "args": [
        "nexus-mcp-ci==2.4.6"
      ],
      "env": {
        "NEXUS_STORAGE_DIR": "<NEXUS_STORAGE_DIR>",
        "NEXUS_OFFLINE": "<NEXUS_OFFLINE>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "nexus-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "nexus-mcp-ci==2.4.6"
      ],
      "env": {
        "NEXUS_STORAGE_DIR": "<NEXUS_STORAGE_DIR>",
        "NEXUS_OFFLINE": "<NEXUS_OFFLINE>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
NEXUS_STORAGE_DIR
Optional		Folder for the index, memories and graph (default: .nexus in the project)
NEXUS_OFFLINE
Optional		Set to 1 to block the embedding model download after the first run

Details

Package[email protected] (PYPI, stdio)
First published8 Nov 2026
Last updated8 Nov 2026
Registry nameio.github.jaggernaut007/nexus-mcp

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